CN220858406U

CN220858406U - Miniature telephone receiver

Info

Publication number: CN220858406U
Application number: CN202322466537.4U
Authority: CN
Inventors: 陈斌
Original assignee: Suzhou Jushengyuan Electronics Co ltd
Current assignee: Suzhou Jushengyuan Electronics Co ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-04-26
Anticipated expiration: 2033-09-12

Abstract

The utility model relates to a miniature receiver which comprises a shell, wherein the length of the shell is the same as the width of the shell, the length of the shell is less than or equal to 3mm, a U-shaped armature, a first magnet, a second magnet, a magnetic conduction piece, a coil and a vibrating diaphragm are arranged in the shell, the thickness of the middle part of the U-shaped armature is smaller than that of a first reed, the thickness of the middle part is also smaller than that of the second reed, the width of the middle part is larger than that of the first reed, the coil is sleeved on the first reed, the first magnet and the second magnet are respectively arranged on two sides of one end of the first reed, the magnetic conduction piece is arranged on the outer sides of the first magnet and the second magnet, the second reed of the U-shaped armature is positioned on the outer sides of the coil and the magnetic conduction piece, a conducting rod is arranged on the first reed, and one end of the conducting rod is arranged between the first magnet and the coil and penetrates through a yielding through hole arranged on the second reed and is connected with the vibrating diaphragm positioned on the outer side of the second reed. The shell size of the miniature receiver is less than or equal to 3mm, and the layout is compact and reasonable.

Description

Miniature telephone receiver

Technical Field

The utility model relates to the field of telephone receivers, in particular to a miniature telephone receiver.

Background

The receiver is a sounding component. One type of receiver is a balanced armature receiver. The balanced armature receiver generally comprises a shell, wherein a coil, an iron core, a magnet, an armature, a vibrating diaphragm and the like are arranged in the shell. The length of the shell of the current balanced armature type receiver is generally more than 5mm, and when the balanced armature type receiver is used, if the balanced armature type receiver is plugged into an auditory canal, a part of the balanced armature type receiver can be exposed outside the auditory canal, which has adverse effects on use and attractive appearance.

It is therefore necessary to develop a balanced armature type of microphone that shortens the length of such a microphone to less than 3mm, resulting in a miniature microphone. However, the size of each component is reduced after the housing is reduced, and the sound pressure output is easily insufficient. These are all problems to be solved.

Disclosure of utility model

Based on this, a micro-receiver is provided. The shell size of the miniature receiver is less than or equal to 3mm, the layout of each element in the miniature receiver is compact and reasonable, the space in the box body is fully utilized, and the sound pressure output of the miniature receiver is large, so that the existing requirements can be met.

A miniature receiver comprises a shell, wherein the length of the shell is the same as the width of the shell, the length of the shell is less than or equal to 3mm, a U-shaped armature, a first magnet, a second magnet, a magnetic conduction piece, a coil and a vibrating diaphragm are arranged inside the shell,

The U-shaped armature comprises a first reed, a second reed and a middle part which is arranged at intervals and is positioned between the end part of the first reed and the end part of the second reed, the thickness of the middle part is smaller than that of the first reed, the thickness of the middle part is also smaller than that of the second reed, the width of the middle part is larger than that of the first reed,

The coil is sleeved on the first reed, the two sides of one end of the first reed are respectively provided with a first magnet and a second magnet, the magnetic conduction piece is arranged at the outer sides of the first magnet and the second magnet,

The second reed of the U-shaped armature is positioned outside the coil and the magnetic conduction piece,

The first reed is provided with a conducting rod, the conducting rod is positioned between the first magnet and the coil, and one end of the conducting rod penetrates through a yielding through hole arranged on the second reed and is connected with a vibrating diaphragm positioned on the outer side of the second reed.

In one embodiment, the magnetic conductive member is an iron core, a yielding structure for the conductive rod to pass through is arranged on the iron core, and the width of the middle part of the U-shaped armature is the same as the width of the iron core, or the width of the middle part of the U-shaped armature is 0.1-0.2mm smaller than the width of the iron core.

In one embodiment, the magnetic conductive member includes a first magnetic conductive plate and a second magnetic conductive plate, the first magnetic conductive plate is disposed on the outer side of the first magnet, the second magnetic conductive plate is disposed on the outer side of the second magnet, the width of the middle portion of the U-shaped armature is larger than the width of the first magnetic conductive plate, the width of the middle portion of the U-shaped armature is larger than the width of the second magnetic conductive plate, the width of the middle portion of the U-shaped armature is larger than the width of the first reed, the width of the second reed is larger than the width of the middle portion, and the width of the second reed is larger than the width of the first magnetic conductive plate.

In one embodiment, the thickness of the middle part of the U-shaped armature is 2/3 to 1/2 of the thickness of the first reed, and the thickness of the middle part is 2/3 to 1/2 of the thickness of the second reed.

In one embodiment, the width of the middle part of the U-shaped armature is 2.5-2.8mm, and the length of the shell is 2.9-3mm.

In one embodiment, the diaphragm includes a main body portion and a bulge portion, the bulge portion surrounds a part of the main body portion, a connection through hole is arranged in a region surrounded by the bulge portion on the main body portion, and the conductive rod is connected with the connection through hole.

In one embodiment, a flow control hole is provided in the main body portion on a side of the connection through hole.

In one embodiment, the shell is square, the shell comprises a first sub-shell and a second sub-shell which are mutually buckled and connected, and a sound outlet is formed in the first sub-shell.

The beneficial effects of the application are as follows:

1. The application designs the shell to have the same length and width and the length is less than or equal to 3mm, so that the whole size of the receiver is smaller, the use is convenient, and the receiver is beautiful.

2. According to the application, all elements in the shell are reasonably distributed, and the space in the box body is fully utilized.

3. The thickness of the middle part of the U-shaped armature is thinned, so that the thickness of the middle part is smaller than that of the first reed and the second reed on two sides, the stiffness of the armature in vibration is reduced, and larger sound pressure output is formed conveniently.

4. The application per se carries out reasonable design with the width of the middle part of U-shaped armature, and the width of the middle part of U-shaped armature is the same with the width of iron core, perhaps the width of the middle part of U-shaped armature is 0.1-0.2mm less than the width of iron core. This also contributes to a larger sound pressure output.

5. The utility model discloses a U-shaped armature, including U-shaped armature, first magnetic conduction piece, second magnetic conduction piece, U-shaped armature, second magnetic conduction piece, first magnetic conduction piece, second magnetic conduction piece and the width of middle portion of U-shaped armature, rational design is carried out the width of middle portion with the U-shaped armature, magnetic conduction piece includes first magnetic conduction board and second magnetic conduction board, first magnetic conduction board sets up the outside at first magnet, the width of middle portion of U-shaped armature is greater than the width of first magnetic conduction board, the width of middle portion of U-shaped armature is greater than the width of second magnetic conduction board, the width of second reed is greater than the width of first magnetic conduction board, just the width of second reed is greater than the width of second magnetic conduction board. This also contributes to a larger sound pressure output.

6. The application itself applies for a flow control hole being provided in the main body of the diaphragm on the side of the connecting through hole. Thus, the air pressure balance of the two cavities at the two sides of the vibrating diaphragm can be conveniently controlled, and the air pressure curve can be regulated.

7. The length of the shell is less than or equal to 3mm, which is reduced by more than 40% compared with the traditional telephone receiver, and the sound pressure output is more than 95dB at 1khz, thereby meeting the use requirement.

Drawings

Fig. 1 is an exploded view of a micro-phone according to a first embodiment of the present application.

Fig. 2 is a schematic diagram of a U-shaped armature of a micro-receiver according to a first embodiment of the application. In fig. 2, the width of the intermediate portion corresponds to the X direction, the thickness of the intermediate portion corresponds to the Y direction, and the thickness of the first reed and the thickness of the second reed correspond to the Z direction. The width of the other members also corresponds to the X direction.

Fig. 3 is a schematic view showing that a core of the micro-receiver according to the first embodiment of the present application is provided with a relief structure for extending the conductive rod.

Fig. 4 is a schematic diagram showing a connection of a conductive rod of a micro-receiver according to a first embodiment of the present application to a first reed and a diaphragm, respectively. Wherein the conductive rod is located between the coil and the magnet.

Fig. 5 is an exploded view of a micro-receiver according to a second embodiment of the present application.

Fig. 6 is a schematic view of a flow control hole formed in a diaphragm of a micro-receiver according to a second embodiment of the present application.

Wherein:

101. A first sub-shell; 102. a second sub-shell; 101a, a sound outlet; 103. a coil; 104. an iron core; 105. a first magnet; 106. a second magnet; 107a, a first reed; 107b, an intermediate portion; 107c, a second reed; 107. a U-shaped armature; 108. a vibrating diaphragm; 109. a bonding pad; 110. a sound guide tube; 107d, relief through holes; 111. a conductive rod; 104a, a yielding structure; 108a, bulge; 112. a first magnetic conductive plate; 113. a second magnetic conductive plate; 108b, connecting through holes; 108c, flow control orifice.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

As shown in fig. 1, an embodiment of the present application provides a micro-phone, which includes a housing, the length of the housing is the same as the width of the housing, the length of the housing is less than or equal to 3mm, and a U-shaped armature 107, a first magnet 105, a second magnet 106, a magnetic conductive member, a coil 103, and a diaphragm 108 are disposed inside the housing.

The U-shaped armature 107 comprises a first reed 107a, a second reed 107c and a middle part 107b, wherein the first reed 107a and the second reed 107c are arranged at intervals, the middle part 107b is smaller than the first reed 107a, the middle part 107b is also smaller than the second reed 107c, the middle part 107b is wider than the first reed 107a, the coil 103 is sleeved on the first reed 107a, a first magnet 105 and a second magnet 106 are respectively arranged at two sides of one end of the first reed 107a, the magnetic conducting piece is arranged outside the first magnet 105 and the second magnet 106, the second reed 107c of the U-shaped armature 107 is positioned outside the coil 103 and the magnetic conducting piece, a conducting rod 111 is arranged on the first reed 107a, the conducting rod 111 is positioned between the first magnet 105 and the coil 103, and one end of the conducting rod 111 passes through a yielding through hole 107d arranged on the second reed 107c and is connected with a reed 108 c positioned outside the second diaphragm.

Specifically, the positive and negative leads of the coil 103 may be penetrated from the case and may be connected to a pad 109 provided outside the case.

Specifically, in the field of receivers, the components are generally fixed by means of glue bonding or the like. Such as with the housing or with adjacent components.

Specifically, when the micro-receiver is in use, the coil 103 receives a signal to cause the first reed 107a to vibrate, and the vibration of the first reed 107a is transmitted to the diaphragm 108 by the conductive rod 111, so as to cause the diaphragm 108 to vibrate. Sound generated by vibration of the diaphragm 108 is emitted from the sound outlet 101a on the housing.

In one embodiment, as shown in fig. 1 and 2, the magnetic conductive member is an iron core 104, and the first magnet 105 and the second magnet 106 are disposed inside the iron core 104. The core 104 is one component that is known in the art. The core 104 is provided with a relief structure 104a for the conductive rod 111 to pass through, and the relief structure 104a may be a relief hole or a relief groove. The width of the middle portion 107b of the U-shaped armature 107 is the same as the width of the core 104, or the width of the middle portion 107b of the U-shaped armature 107 is 0.1-0.2mm smaller than the width of the core 104. It has also been found that setting the width of the intermediate portion 107b in this way advantageously reduces the stiffness of the U-shaped armature 107 so that the first reed 107a can vibrate smoothly under the influence of the magnetic field.

Similarly, in one embodiment, as shown in fig. 5 and 6, the magnetic conductive member includes a first magnetic conductive plate 112 and a second magnetic conductive plate 113, where the first magnetic conductive plate 112 is disposed outside the first magnet 105, and the second magnetic conductive plate 113 is disposed outside the second magnet 106, that is, the two magnets are disposed between the two magnetic conductive plates. The width of the middle part 107b of the U-shaped armature 107 is larger than the width of the first magnetic conductive plate 112, the width of the middle part 107b of the U-shaped armature 107 is larger than the width of the second magnetic conductive plate 113, the width of the middle part 107b of the U-shaped armature 107 is larger than the width of the first reed 107a, the width of the second reed 107c is larger than the width of the middle part 107b, the width of the second reed 107c is larger than the width of the first magnetic conductive plate 112, and the width of the second reed 107c is larger than the width of the second magnetic conductive plate 113.

In one embodiment, the thickness of the middle portion 107b of the U-shaped armature 107 is 2/3 to 1/2 of the thickness of the first reed 107a, and the thickness of the middle portion 107b is 2/3 to 1/2 of the thickness of the second reed 107 c. I.e. the thickness of the intermediate portion 107b is smaller than the thickness of the first leaf 107a and the second leaf 107 c.

In one embodiment, the middle portion 107b of the U-shaped armature 107 has a width of 2.5-2.8mm and the housing has a length of 2.9-3mm.

In one embodiment, the diaphragm 108 may generally be comprised of a frame, a diaphragm, a membrane, and the like. The diaphragm and the vibrating piece may be engaged to form a bulge 108a. Specifically, the diaphragm 108 includes a main body portion and a bulge portion 108a, the bulge portion 108a may have a U shape or other arc shape, the bulge portion 108a surrounds a portion of the main body portion, a connection through hole 108b is disposed in a region surrounded by the bulge portion 108a on the main body portion, and the conductive rod 111 is connected to the connection through hole 108 b.

On the basis of the above, in one of the embodiments, as shown in fig. 6, a flow control hole 108c is provided in the main body portion on the side of the connection through hole 108 b. For example, the flow control hole 108c is also surrounded by the bulge 108 a.

In one embodiment, the housing is square, and the housing includes a first sub-housing 101 and a second sub-housing 102 that are fastened to each other, and a sound outlet 101a is provided on the first sub-housing 101.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A miniature receiver comprises a shell, and is characterized in that the length of the shell is the same as the width of the shell, the length of the shell is less than or equal to 3mm, a U-shaped armature, a first magnet, a second magnet, a magnetic conduction piece, a coil and a vibrating diaphragm are arranged inside the shell,

2. The miniature receiver of claim 1, wherein the magnetically permeable member is an iron core, a relief structure for a conductive rod to pass through is provided on the iron core, and the width of the middle portion of the U-shaped armature is the same as the width of the iron core, or the width of the middle portion of the U-shaped armature is 0.1-0.2mm smaller than the width of the iron core.

3. The miniature receiver of claim 1, wherein the magnetically permeable member comprises a first magnetically permeable plate and a second magnetically permeable plate, the first magnetically permeable plate is disposed outside of the first magnet, the second magnetically permeable plate is disposed outside of the second magnet, the width of the middle portion of the U-shaped armature is greater than the width of the first magnetically permeable plate, the width of the middle portion of the U-shaped armature is greater than the width of the second magnetically permeable plate, the width of the middle portion of the U-shaped armature is greater than the width of the first reed, the width of the second reed is greater than the width of the middle portion, and the width of the second reed is greater than the width of the first magnetically permeable plate.

4. The miniature receiver of claim 1, wherein the thickness of the middle portion of the U-shaped armature is 2/3 to 1/2 of the thickness of the first reed and the thickness of the middle portion is 2/3 to 1/2 of the thickness of the second reed.

5. The miniature receiver of claim 1, wherein the width of the middle portion of the U-shaped armature is 2.5-2.8mm and the length of the housing is 2.9-3mm.

6. The miniature receiver according to claim 1, wherein the diaphragm comprises a main body portion and a bulge portion surrounding a portion of the main body portion, wherein a connection through hole is provided in a region surrounded by the bulge portion on the main body portion, and wherein the conductive rod is connected to the connection through hole.

7. The micro-phone as claimed in claim 6, wherein a flow control hole is provided at one side of the body portion at the connection through hole.

8. The miniature receiver of claim 1, wherein the housing is square, the housing comprises a first sub-housing and a second sub-housing that are snap-fit to each other, and the first sub-housing is provided with a sound outlet.